I don't know what you are looking for, but the Speer #13 pretty well covers all 9 powders suitable for use in the .30 Carbine.
There might be some powder available from somebody that would be better then WW296, AA #9, H110, IMR4227, VhN110, 2400, SR4759, AA1680, and IMR4198, but I can't think of any.
rcmodel